Car roof



C. D. BONSALL CAR ROOF oct. 1s, 1927. 1,645,851

Filed June 21. 1926 j L, MME/v .f1/f5 Arron/mns.

Patented Oct. 18, 1927.

PENNSYLVANIA.

l g 1,645,851 UNlTEDsTATEs `latir-131erg OFFICE. l

CHARLESODAVID BoNsALL,` OFP'ITT'SBURGH, PENNSYLVANIA, AssIGNoR ro i. H.MUBPHY'COMPANY, or NEW KENSINGTON, PENNSYLVANIA, A CORPORATION or CARROOF.' Y

Application led'J'une 21, 195%.-l Serial No. 117.389.

This invention relates to single-course car roofsV of the all-steelriveted-up type wherein heavy gage roofing sheetsextend from side plateto side-plate of the car and are riveted thereto and to each other toform a.

load Asustaining structure.

The principal object ofl the present invention is to produce a roof oflight weight and of great strength and rigidity.y @therf objects are tofacilitate the manufacture and assembly of the sheets and to effectgreater economy of material. The invention. consists principally informing the sheets with steps of substantially the same width and l5depth that lead inwardly from the sides of the sheets to the middlethereof and extend transversely of the car Overthe side plates thereof.The invention also consists in the parts and the arrangements andcombinations of parts hereinafter described and claimed.

AIn the accompanying drawing, which forms part of this specification andwherein like symbols refer to like parts wherever they occur,

Fig. 1 is a plan view of a portion of the car roof embodying myinvention;

Fig. 2-is a longitudinalsection through the roof at the ridge on theline 2.-2 in Fig. l; u y

Fig. 3 is an enlarged transverse section through one half ofthe roof,the section being taken on the line 3 3 in Fig. l;

Fig. 4 is a cross-sectionthroughrthe eaves the line 4 4 in Fig. l; and

Fig. 5 is a perspective view of the eaves end portion of a modified formof roof. sheet.

Referring to Fig. 1 of the accompanying drawing, my invention is shownin connecftion vwith a car havingZ-bar side plates 5 arranged with theirwebs horizontal and with one flange/in and extending upwardly. Metalroof sheets 6 extend from eaves to eaves of the car and are provided attheir eaves ends with depending flanges 7 that overlap the upstandinginner flanges of the side plates and are rigidly secured to the outerfaces thereof by rivets 8. The roof sheets slope downwardly on oppositesides of the ridge to form a pitch or arcuate roof and have flat sidemarginal portions that are overlapped and secured together by rivets 9.

portion of the roof at4 one of the joints on -l Angle-shaped supportingmembers 10 are located beneath ythe eaves end portions of the overlappedside .marginal roof portions ofthe.sheets,`with one flangev securedtothe inner face ofthe side plates by the rivets that secure the dependingeaves flanges 7 of t-he sheets thereto. The other flange of thesupporting members extends inwardly and is secured to t-he under side ofthe lap joints by means of the securing rivets 9 therefor.

Running boards 11 extend longitudinally of the' carat the ridge and reston and are bolted to the lateral top flanges of Z-shaped runningvboardsaddles y12 whose lateral base flanges rest on the overlappedsidemarginal.

portions ofthesheets and areV secured thereto by securing rivetsl 9therefor.

The roof sheets shown in Figs. 1 to 4 are provided with a series ofvertically offset surfaces 13 that extend transversely of the car fromend to end of the Sheets where they are curved down and merge into theflat surfaces of the depending eaves flanges 7 of said sheets. Theoffset portions of the sheets are preferably ofcorresponding width anddepth .and are offset both verticallyl and horizontallywithrelation toeachother to form a series of flat steps that lead inwardly from theopposite sides of the sheets to the middle thereof` and extend parallelto the Y sides ofthe sheets from end to end thereof. The sheets shown inFigs. 1 to 4 have their highest surface located 'at the side margins ofthe slieetand their lowest portions at the middle thereof,` the lowmiddle portions of the sheets being connected to the higher sidemarginal portions thereof by a succession of raised surfaces, forming aneven series of steps leading inwardly from each side of the sheet to themiddle thereof.

In the modified form of sheet 6a shown in Fig.5, the `-highest surfaceis at the middle of the'sheet'and the lowest surface is at the marginsthereof; and said high vmiddle portion of said sheet is connected to thelower marginal portions thereof by series of successive upwardly offsetvsurfaces 13a. The offset portions extend longitudinally of the sheetfrom end to end thereof where they are curved downwardly. to meet thedepending eaves flanges 7a thereof.

Among the advantages of the present construction are the cheapness withwhich the roof sheets may be made, due principally to the simplicity oftheir design and its adaptaloilityA tothe die pressing operation, theirOjreat'strength fora given `amount ofithe metal and the facility withwhich they may be applied to the root. It is noted that the shape of thesheets enables ample Width and depth of the sheets to be obtainedWithout making t-lie vertical walls or horizontal surfaces thereofexcessively Wide; and it also erinits the sheets to he nested or stackedfor shipment. It is also noted that the forming of the sheets withsuccessive stepsthatex inthe drawings.

What I claim is'. Y y y 1. Acar roo comprising a series of metal roofsheets connect-ed together along their Vadjacent margins'. eachl of saidsheets com prisi-ng a seriesof steps extending `,from end portion to endportion thereof.

2. A car roof 'comprising aseries of metal l roof 'sheets extending fromside plate toside plate'of the car and connected together along theirside margins, eachof said sheets comprising a siiccessionoi:`s'teps"extending transversely of thecar from side `plate to side plate.

y 3. Acar roof` comprisingy a series of metal roof sheets extending fromside plate toside plate of the car and connected together along theiradjacent side margins, each -of said sheets comprising a succession fofsteps `eirtendingitransversely o'f;the."ca,`r from -side plate to sideplate, each of said stepshaving downwardly ciii've'dend portionsthat/merge; into depending ilanges at the eaves'ends lot the sheets.4 il i y Y 4. A car roof comprising a serieso metal roof sheets lextendingfrom side plate to side plate of the car `and connected together and tothe car piisiiig a vertically offset middle portionand a series ot stepsleading romthe adjacent margins ot said sheets to the verticallyoii'setmiddle portionsthereof, said steps extending transversely of the carfrom end portionto end portion o the sheets. t

iranie-` each of said sheets com- Y 5. A car roof comprising aseries ofmetal Vroof sheets. extendingfrom sidefplate to side plate-.oitheicarand connected fitogether and to the car frame, each of saidsheets comprising a .verticallyl offset middle portion and a series ofsteps leading y from the y adjacent margins 0f said sheets to thevertically*oiset middle portions thereof; said stepsextendingtransversely of the car from near one end to nemrthe otheiffendofi thesheets where they are curved downwardly and merge into depending flangesat the eaves ends ci Said sheets;

Gn A cafrrooit sheet comprisingaV depressed middle :portion and a;series of steps leading fiiom twoi 4opposite sides` ot "the` sheet 1 tothe depressed middle portion" thereof, said Steps extending from nearone` end` to near the otherendwoitheisheetx 1y `1 7. Acarfroosheeticomprisinga depressed iniddlefportioniind ia series ofstepsleading from'two opposite sides of Athe sheet tothe depressedmiddle portion thereon-.1 .said step extendiirigiifromxnear .one endl tonearztlie other end 'of the 4sheet-.Where they lareicnrved dcwnwardland,` merge into.` 1' depending flanges at t e ends of tlileslieet i f YY v i 81:1 A car i roof sheet: comprising; a1 series of steps of`substantially equal length extending lengthwiseoffsaidsheet from naroneendzto near l theother end -thereotfwisth their ends merging intodependingflanges.:A y

9. A car roof Vsheet,comprising a series ot steps extending lengthwise:ot` said sheet from nearione `end toqnear the other` end thereof Wherethey arer curved fdownwardl L and merge into depending anges at theendis'n of said sheet. i

10. A carl roof sheetfcomprising" a: de pressed middlefportionf andaseries of 'steps extending-#from voppositeA margins offfisaidV sheet tothe depressedmiddle portion there of; said "stepsextendi wftom nearoneend tofnear the other end Vo the sheets.'-

11. Al car'droofl sheet `e'cnfiprising ay de;

' pressedy middle portion and a 1 series oif'steps extending fromropposite Y margins of i said sheet to Vthe depressed -iiniddle iportiony there` ot,""said "steps @extending from near one end toqnearthe otherrendof'lthesheets where they are-curved downwardly andsmergeinto depending-,flanges at the ends thereon Signed Vat NewIs'censington,` Pennsylvania, this lthidayioi Jne, 19262' Y K c.

Y CHARLES 1DAVID BNSA-LL;

